defeated about Murder.....

[Patrick Radtke]

I also added
http://cyrusimap.web.cmu.edu/twiki/bin/view/Cyrus/WhyMailDeliverySlow

to the FAQ

It lists the causes of mail delivery problems that we've seen.

-Patrick

On Jun 18, 2006, at 8:57 AM, Andrzej Kwiatkowski wrote:

> Hi..
>
> I'was thinking that Murder is a very good concept for cyrus...
> Till today.
>
> I've started some performance test:
>
> I've 4 MTA with Postfix+Cyrus frontend 2.2.12
> 4 backend with Cyrus 2.3.6
> and 1 Mupdate with cyrus 2.2.12.
>
> I've started with smtp-stone sending
> 3000 msg (1000 for each of 3 users on 1 backend).
>
> Backend load was very low.
>
> But in this time mupdate have load about 1,5 (why ?)
> The concept was that mupdate is only for changing location of
> mailboxes... My frontend have information on mailboxes (checked with
> ctl_mboxlist -d) but they still are looking in mupdate which causes  
> high load
> and SIGSEGV...
> Which causes lmtpproxy to drop connecitons and growing queue in  
> postfix...
>
> Am i doing something wrong ?
> Authentication is doing by sasl digest-md5 to avoid SQL database  
> performance,
> so i think this is no problem..
>
> So why mupdate causes such problems ?
>
> Thanks
> AK
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